CVE-2026-51539: High severity libmodbus libmodbus vulnerability
Published Jul 13, 2026
·Updated
A Denial of Service (DoS) vulnerability exists in the receive loop of libmodbus 3.1.12 when running on Windows. The issue stems from improper timeout management during network read operations.
Affected Software
1 affected component
libmodbus libmodbus=3.1.12
Event History
Jul 13, 2026
CVE Published
via MITRE·12:00 AM
Data Sourced
via MITRE·12:00 AM
Description
Data Sourced
via NVD·10:16 PM
DescriptionSeverityWeakness
Frequently Asked Questions
1
What is the severity of CVE-2026-51539?
CVE-2026-51539 has a severity rating of 7.5, indicating a high risk level.
2
What type of vulnerability is CVE-2026-51539?
CVE-2026-51539 is a Denial of Service (DoS) vulnerability.
3
How does CVE-2026-51539 impact systems running Windows?
CVE-2026-51539 impacts systems by causing potential service interruptions due to improper timeout management during network read operations.
4
Which version of libmodbus is affected by CVE-2026-51539?
CVE-2026-51539 affects libmodbus version 3.1.12.
5
How can I mitigate the effects of CVE-2026-51539?
Mitigating CVE-2026-51539 involves updating libmodbus to a newer version that resolves the timeout management issue.